.middle {
    width: 1000px;
    height: 800px;
    margin: 50px auto;
    border: 1px solid red;
    overflow: hidden;
}

.middle > div:first-child {
    color: #e69137;
    font-size: 30px;
    /*margin: 10px;*/
    padding: 10px;
    border-bottom: 1px solid red;
}

.middle > div:nth-child(2) > div:first-child {
    padding: 10px;
    font-family: 楷体;

}

.middle > div:nth-child(2) > div:first-child div {
    text-indent: 3em;
    margin-bottom: 30px;
}

.middle > div:nth-child(2) > div:nth-child(2) {
    width: 300%;
    height: 300px;
    animation: move 10s linear 0s infinite normal;
}
.middle > div:nth-child(2) > div:nth-child(2) img{
    margin: 0 15px;
}
@keyframes move {
    from {
        margin-left: 0;
    }
    to {
        margin-left: -1000px;
    }
}